South America is a funnier place than most people expect and is full of odd curiosities. For example, most countries have one official name — e.g. ‘United States of America’ — whereas Argentina has three.
The 1853 constitution gives equal status to the names ‘United Provinces of the River Plate’, ‘Argentine Republic’, and ‘Argentine Confederation’, further detailing that ‘Argentine Nation’ should be used in the making and enactment of laws.
So far as I know, Argentina is also the only country whose name only comes in an adjectival form. We think of ‘Argentina’ as a noun, but it is actually an adjective — meaning silverine — that modifies ‘Republic’.
Referring to the country as ‘the Argentine’ was once fairly common, even predominant, in English but now seems a bit fogeyish. Nonetheless, it’s a more accurate translation.
While Argentina has three official names, today I learned that its smaller neighbour, the Oriental Republic of Uruguay, has three official flags.
Rather than add to the unceasing and useless repetition of the internet, I can happily link to the Danish vexillogist Anton Pihl who gives a useful and concise explanation and background to the three official flags of Uruguay.
Furthermore, Uruguay’s Artigas flag bears a great deal of similarity to the flag of the Argentine province of Entre Ríos which happens to sit right across the Uruguay river from Uruguay itself. The province’s name means ‘Between Rivers’ (the other river being the Paraná) which, of course, is a cognate of Mesopotamia far away.
And why is Uruguay the ‘Oriental Republic’? Because it’s the eastern bank of the Uruguay river.